Stackable clamp



FIG. 1 is a top front perspective view of a stackable clamp.

FIG. 2 is a top rear perspective view of the stackable clamp, design of FIG. 1.

FIG. 3 is a bottom front perspective view of the stackable clamp, design of FIG. 1.

FIG. 4 is a bottom rear perspective view of the stackable clamp, design of FIG. 1.

FIG. 5 is a right side view of the stackable clamp, design of FIG. 1.

FIG. 6 is a left side view of the stackable clamp, design of FIG. 1.

FIG. 7 is a front view of the stackable clamp, design of FIG. 1.

FIG. 8 is a rear view of the stackable clamp, design of FIG. 1.

FIG. 9 is a bottom view of the stackable clamp, design of FIG. 1; and,

FIG. 10 is a top view of the stackable clamp, design of FIG. 1. 

CLAIM The ornamental design for a stackable clamp, design as shown and described. 